Embryoid culture technique was discovered by

Options

A. Guha and Maheshwari
B. Skoog and Miler
C. Muir et al
D. Steward.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the discovery of the embryoid culture technique. This technique is significant in plant tissue culture and genetic engineering.

2. **Identifying the Options**: The options provided are:
- A. Koha and Maheshwari
- B. Spook and Miller
- C. Muir et al
- D. Stewart

3. **Researching the Scientists**: To answer the question, we need to identify which of these scientists is associated with the embryoid culture technique.
- A. Koha and Maheshwari are known for their contributions to plant tissue culture but not specifically for embryoid culture.
- B. Spook and Miller are also notable in the field of plant biology but not directly linked to embryoid culture.
- C. Muir et al have made contributions in various areas, but they are not recognized for embryoid culture.
- D. Stewart is known for his foundational work in plant tissue culture and specifically for the discovery of the embryoid culture technique.

4. **Selecting the Correct Answer**: Based on the research, the correct answer is D. Stewart, as he laid the groundwork for plant tissue culture and established that plants could be regenerated from a single cell.

5. **Final Answer**: The embryoid culture technique was discovered by D. Stewart.

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